19136781

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{227}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 32011200

約数和(自身を除く): 12874419

約数列:

[1, 3, 9, 17, 19, 29, 51, 57, 87, 153, 171, 227, 261, 323, 493, 551, 681, 969, 1479, 1653, 2043, 2907, 3859, 4313, 4437, 4959, 6583, 9367, 11577, 12939, 19749, 28101, 34731, 38817, 59247, 73321, 84303, 111911, 125077, 219963, 335733, 375231, 659889, 1007199, 1125693, 2126309, 6378927, 19136781]

約数ペア:

[(1, 19136781), (3, 6378927), (9, 2126309), (17, 1125693), (19, 1007199), (29, 659889), (51, 375231), (57, 335733), (87, 219963), (153, 125077), (171, 111911), (227, 84303), (261, 73321), (323, 59247), (493, 38817), (551, 34731), (681, 28101), (969, 19749), (1479, 12939), (1653, 11577), (2043, 9367), (2907, 6583), (3859, 4959), (4313, 4437)]